C # Minimize to pallet + double-click Pallet Recovery + Disable running multiple this program

Production of pallet programs:

1. Add the NotifyIcon control and add icon, otherwise the tray has no icon (the Tray Right-click menu can also be added directly in the attribute);
2. Resize or sizechanged messages in response to the form:

// Hide to System tray   Private void Form1_Resize (object  sender, EventArgs e)  {      if (this. WindowState = = formwindowstate.minimized      )          {this. Hide ();            This false ;            This true ;      }  }  

3. Double-click the tray icon to restore the DoubleClick message that responds to NotifyIcon:

 //  Show from system tray  private  void  Notifyicon_doubleclick ( Object   sender, EventArgs e) { if  ( Span style= "color: #0000ff;" >this . WindowState == formwindowstate.minimized) { this  .          Show ();  this .          WindowState = Formwindowstate.normal;  this .        ShowInTaskbar = true   = false  ; }  }  

Prevent this program from running multiple edit Program.cs files at the same time (refer to 1:c# tips on how to prevent programs from running multiple times 2:[c# development tips] How to prevent programs from running multiple times)

usingSystem;usingSystem.Windows.Forms;usingSystem.Threading;namespacewhoonline{Static classProgram {/// <summary>        ///The main entry point for the application. /// </summary>[STAThread]Static voidMain () { Mutex m = new Mutex (false, "Product_index_cntvs",  out BOOL bcreatednew);  if  (bcreatednew) { application.enablevisualstyles (); Application.setcompatibletextrenderingdefault (false); Application.Run (NewForm1 ()); }             Else  {MessageBox.Show (" the application is already running ... " ); System.Threading.Thread.Sleep (+);  //  terminates this process and provides the specified exit code for the underlying operating system. System.Environment.Exit (1 ); }        }    }}

C # Minimize to pallet + double-click Pallet Recovery + Disable running multiple this program